>
>
>At 03:42 PM 10/3/2000 -0700, you wrote:
>>
>>The second reportedly kaput 8877 (s/n LZZ 506) that was removed from an
>>AL-1500 was tested today. The positive and the negative anode/grid
>>leakage was under 2uA @ 8000v - so gold-sputtering is not likely. The
>>heater has continuity. The anode appears to have been quite hot -- but
>>obviously not hot enough to cause seal failure. Any guesses from the
>>8877-mavens as to why this tube failed?
>>
>>end
>>
>
>Maybe it really isn't dead at all.
good point. I would hate to saw the anode off of it and find zero
problems.
>Or maybe it's just plain pooped. What's the expected life span of an 8877..?
c. 15k-hours.
I need to find someone with an 8877 amplifier - that has proven glitch
protection, who is willing to test a tube.
end
cheers, Phil
- Rich..., 805.386.3734, www.vcnet.com/measures.
end
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